- Overview
Introduction
• Integrated structure with no moving parts, simple operation and reliability.
• Achieve the effect as normal hole opener during drilling operation, reducing NPT and drilling costs.
• The special design of the 5 blades in order to have a larger operation area while increasing cutters density.
• Optimize the force balance design by using professional design software, minimizing the impact damage caused by unbalanced forces for smooth drilling.
• Optimize hydraulic structure, blade height, and injection distance improve the cooling effect of the tool and the efficiency of cuttings return, preventing the accumulation of cuttings and repetitive cutting, increasing ROP
6-1/8" DFSR1605U
SIZE: 155.6 mm
IADC: S223
SPECIFICATIONS
Item |
Parameter |
Number of Blade |
5 |
Total Cutters |
32 |
Main Cutter Size |
5/8"(16mm) |
Face Cutter |
27 |
Gauge Cutter |
5 |
Back Up Cutter |
/ |
Gauge Length |
1.5mm(38.1mm) |
Nozzle Qty(Type) |
5MSP |
Junk Slot Area |
10.2in²(65.6cm²) |
Make-Up Length |
29.7"(754mm) |
API Connection |
3-1/2 REG BOX (top)2-7/8 REG (Bottom) |
RECOMMENDED PARAMETERS
Item |
Parameter |
Flow rate |
10~25 L/S |
Rotary Speed |
60~350 RPM |
Weight on bit |
30~80KN |
Mix Weight on Bit |
100 KN |
Max Tensile Strength |
830 KN |
Max Torque Resistance |
25000 N.m |
8-1/2" DFSR1605U
SIZE: 215.9mm
IADC: S223
SPECIFICATIONS
Item |
Parameter |
Number of Blade |
5 |
Total Cutters |
37 |
Main Cutter Size |
5/8"(16mm) |
Face Cutter |
32 |
Gauge Cutter |
5 |
Back Up Cutter |
/ |
Gauge Length |
1.5mm(38.1mm) |
Nozzle Qty(Type) |
5MSP |
Junk Slot Area |
18.8in²(121.6cm²) |
Make-Up Length |
32.3"(820.0mm) |
API Connection |
4-1/2 REG PIN (top)4-1/2 REG BOX (Bottom) |
RECOMMENDED PARAMETERS
Item |
Parameter |
Flow rate |
25~38 L/S |
Rotary Speed |
60~350 RPM |
Weight on bit |
30~110KN |
Mix Weight on Bit |
130 KN |
Max Tensile Strength |
2000KN |
Max Torque Resistance |
40000 N.m |
12-1/4" DFSR1605U
SIZE: 311.2 mm
IADC: S223
SPECIFICATIONS
Item |
Parameter |
Number of Blade |
5 |
Total Cutters |
45 |
Main Cutter Size |
5/8"(16mm) |
Face Cutter |
40 |
Gauge Cutter |
5 |
Back Up Cutter |
/ |
Gauge Length |
1.5mm(38.1mm) |
Nozzle Qty(Type) |
5SP |
Junk Slot Area |
46.8in²(302.5cm²) |
Make-Up Length |
34.6"(880.0mm) |
API Connection |
6-5/8 REG PIN (top)6-5/8 REG BOX (Bottom) |
RECOMMENDED PARAMETERS
Item |
Parameter |
Flow rate |
30~60 L/S |
Rotary Speed |
60~350 RPM |
Weight on bit |
20~160KN |
Max Tensile Strength |
3000KN |
Max Torque Resistance |
90000 N.m |
